Cutter device.



0. sensor.-

CUTTE-R DEVICE;

APPLICATION FILED DEC. 11, I909- 1,24 8,554. Patelited Dec. 4,1917.

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UNITED STATES PATENT orator.

OSCAR L. SGA L'BOM, OF GLENVIEW, ILLINOIS.

CUTTER DEVICE.

Specification of Letters Patent.

Patented Dec. 4, 1917.

Application filed December 17, 1909. Serial No. 533,663.

' and State of Illinois, have invented certain new and useful. lm 'irovements in (utter Devices, of which the following a specification.

My present invention relates to cutlcl' devioes generally and contemplates more especiall the provision of a conveniently operable portable device f r pointing. and repointing; the bamboo reprothuer needles" used in connection with sound reproducing n'n'tchines, and for cutting liln'ous and other hard resistant materials having a tendency to splinter or i'rav at the edges when sul mitted to ordinary cutting operations.

The principal objects of my invention are the provisioi'i of a simple device of the character described which may be produced at a sufficiently low cost to permit the users of phonograplis and other (.OllSlllllOl's of such reproducer needles to' resharpcn the necdles and thereby inulti lly many times the present life of such needles instead of having'to discard them and renew the stock at some little cxpcn'se and inconvcuiencc Further objects of my invention are the provision of a cutter characterized as above ii'i'dicatcd. by the use of which such rcpro duccr needles may he provided with line; sharp and clean points; the provision oli means whereby the cutter members may he forced into close contact with aich other; the provision of compensating I means whereby a moving cutter may be held in intimate contact witlrthe stationary cutter,

or vice versa. as the device teuds'to wear in service; the provision of means whereby ,a minii'num'amount of material is removed from the needle at'thc time the cutting operation is c'liected: the provision of means whereby after the completion of the cutting operation, the device is restored to operative position. and grnerall to produce a device of the elniracter referred to "which will be simple and inexpensive in manufacture. elliciont'and uzcurate iu operation. and unlikely to'geti-out of order. and one in which the wearing parts may be readily and. inexpensively replaced when IlEKfiQSStlfiY, together with. such other objects as will hereinafter appear.

Heretofore the operation of pointing and.

re 'iointing fiber i-cproduccr needles has been carried out el'l'eetivel v only by the means of power operated machines: of relatively large. cost and consii'lcrable weight. which are not ordinarily available to the users o'l phonogl 'aphs employing"fiber needles, and owing to the i 1ectssit v of insuring the closest possible contact at all times between the cutter devices in order that the needles .may he sharply and clculil)" pointed. such power operated machines have embodied therein certain more or less complex and hence undesirable features cl construction.rendering the n'iuchin( s less cllicient. To overcome these objections. as fwcll as to accomplish the objects above stated'and gain ,certain further :Hll'ill'lltlfltfi. Ihaveprovided a construction. one exeuiplitication of which is illustrated in the accompanyingdrawings; wherei nl igurc 1 is an clevat-ioual vie: partly in section of one side of a device embodying 1n v invention in pielerrtal :lorm:

Fig. 2 is an elevational view reg ing the left hand end ol the device of Fi e x l; and

.lfig. is a sectional view taken on the. line lll---l ll of Fig. 1, looking in the direction indicated by the arrow;

Fig. lis a view illustrative of a reproducer needle pointed by the machine of l ig's. l to 2-3.

, Referring now more particularly to Fig. 1. it will be observed that in cal-crying out nrv invention 1 provide a stationary base, 10. prerlera'bl of cast metal covered by some soft material. such as felt, as indicated at 11.

on the base 10 are a pair of upstanding ears 12 between which the cutter headlii .is pivoted as indicated at 14. At the opposite end of thehead" I provide a n'iovable cutter lahifurcated at its upper end as imlieated at 1616. and engaging such llead by n'ieans of the pin 17. The base 1.0 is likewise provided with a pair of upstanding cars 18 to which is pivoted the'stationarj cutter plate 19 by means of the pins 20.

The cutter plate19 in turn carries the needle rest 21, secured thereto by a set screw Q 22, which rest is providcd with a guide 28, preferablv disposed diagonally thereupon, to the end that the cut given 'the needle ma be at an angle of approximately 40 to the longitudinal axis of the needle. The rest 21, I find in practice, should be set at all angle of about 40 relatively to the horizonlOt a 8:5 the head'i's 45. contact of i a :65 cutter 19, against the stop 24 that on account tal in order to make the point on the needle 1 of the reatest'feasible angularity and fineness. o the end that a minimum amount of material-may be removed from the needle '5' by the cutting operation I employ as a, stop for the needle the spring 24 mounted in the cars 25 formed on'the base 10, which as here shown also serves to force the cutter'15 into contact with the cutter late-19.

To insure the closest possible contact be-- tween the cutter and the cutter 19, when .the head .13 is actuated by being struck at 26, and thereb not only to assure the formation of a c can point on the needle but 15 also thatsuch point maybe slightly tapered and of exceedin fineness, I provide a s ring 27 inserted un er compresslon in the cue ing 28 in said head, the free end of said spring exerting a constant pressure on the, said cutter 15, holdin it in contact with the cutter 19; anti furt or provide a s ring 29 inserted under compresslon in-the ousing 30 formed in the base 10, the outer end of such'spring exerting a constant pressure on the base. 31 ofthe rest 21, mounted-upon the cutter 19..

For the purpose of restoring the device to o erative position (as observable in Fig. 1) i .a ter impact u'pon'the head 13 or other dek pression of such-head, I provide a spring 32 inserted under compression infa housmg 33in the base12, the free end of such spring bearing a ainst an arm 34: provided. on the head 13 y. means of which construction maintained in an elevated posi -tio with the'edge 35 of the cutter 15 a substan ial distance above the-cutting edge ii of the\cutter plate 19 and above the guide 24.

I As will be obvious .upon' an inspection of 4 the drawing, the'cutter- 15 is restrained inits:- movement to the left by mean of its contact withbifurcated upperends 37 of the cutter .19, andthe cutter 19 isrestrained in its movemen the right as well by the withthe cutter 15 which upon compression of the spring 27- -abuts against the lower end 38'of'thehousing 28, as by the stop 24.,

In the'operation'of my. invention it will 36 be apparent upon viewing the drawing that upon forcible depression of the head 13' the cutter "15 will remove only that part of the, reproducei' needle extendin from the ide- 23, between the bifurcate f ends-37 o the of the an larity of the disposition of the rest 21. re atively to the cutters 15 and 19,

and theanguIarity of the guide 23 relatively to such rest, a. very sharp ppint' will be;

given the reproducer needle that by virture -.of. t 'ecoepe'ratin action'o the springs 27', a "29 and-24 u on t e cutters 15and 19..such

cutters will forced into and held in the closest possible contact-thus insuring a very '65 fine clean and. sharp point; and that upper bifurcated. portions 37 means of the action of the spring 32 the device will be automatically restored to operative position.

Having thus described my invention and illustrated its use what I claim as new, and desire to secure by Letters Patent is the followin 1. 1E cutter device comprising, in combination, pivotally movable base and head members, a cutter carried by said base, a

second cutter carried by said head, a boss on said head adapted to be struck by the hand, said-cutters being transverse to the pivotal plane of said parts, and outwardly members, a cutter pivotally carried by one of .said members, the other thereof being provided with acutting edge traversed by said cutter and with supporting means whereby material may be held in position to be acted upon bysaid cutter, and a.yield ingly resistant device for restraining the movement of the material and forcing the cutter into contact with said material.

. 3. A cutter device comprising, in combi- 'nation, relatively movable base and head' members, a cutter movably carried by one-of said members and adapted to be moved in a plane at an angle to the path of movement of its support,'the other of said membersbeingprovided with a cutting edge traversed by said cutter, a feed guide carried by said other member, and means in the 'line ofmovement of the cutter for first restraining the movement of material past the cutter and thenforcin the cutter into operative position relative y to the said guide.

*4. A cutter device comprising, in combination, relatively' movable base and head members,, a cutter movably carried by one of said members and adapted .to be moved in a plane at an angle to the path of movement thereof, a feed guide carried by the other of said ,members on one side of the plane of movement or the cutter, and a sprmg stop c on the opposlte side of such plane for fore-.1 the-cutter in operative pos tion relatively,

ing to the said guide.

- ,5. A cutter. devicecomprising, in combination, abaseland ahead mounted for-move;

Inent'relative1y,to-each other, a cutter de-' vice ,mounted upon said. base for movement "as, relatively thereto, a cutter device mounted." on said head for movement relatively thereto, the said cutter devices having traversin I I edges, nea'ns whereby material. may be gui I to then 'cutten and; "yieldingly resistant lac stop means adjacent said last mentioned means whereby the cutters are forced into contact during their traverse.

6. In a tool of the class described, a face platehaving an opening therein, a work holder adapted to guide the work to said opening, a knife and a. member for advanc ing said knlfe and simultaneously pressing cutting edge against said plate on the side thereof opposite to the holder.

7. In a needle sharpener, the combination of a pair of plier arms, a face plate rigidly secured to one of them, a fulcrum pin carried by the other of them, and a knife fulcrumed upon said pin, the pin being located in the knife above and behind the cutting edge thereof.

8. In a needle sharpener, the combination of two power elements traveling on the arc of a circle, a face plate mounted upon one of said power elements parallel to the axis thereof and approximately tangential to said are and a knife pivoted to the other of said power elements upon an axis parallel to the axis of said power elements.

9. In a needle sharpener, the combination of two power elements, a face plate mounted on one of them, a knife pivot mounted upon the other of them, and a knife supported upon said pivot, the face plate and the cutting edge of the knife being parallel to the axis of the knife pivot, and said face plate extending substantially in the direction of travel of said cutting edge.

10. In a needle sharpener, the combination of a pair of plier arms, a face plate rigidly secured to one of them and arranged approximately tangential to the are upon which the hereinafter mentioned knife edge t-avels and a knife pivoted to the other of said arms upon an axis parallel to the axis of the plier arms, the cutting edge of the knife being also parallel to the axis of the plier arms.

ll. In a needle sharpener, the combination of a pair of plier arms, a face plate rigidly secured to one of said arms and having an opening therein, the portion of the plate adjacent to said opening being parallel to the axis of the plier arms, and a knife pivoted to the otherot said. arms upon an axis parallel to use axis of the plier arms, the cutting edge of theknife being also parallel to the axis of the plier arms, and the point of pivoting of the knife .to the arms being above and behind the cut ting edge of the knife when the knife is moving forward,whereby the cutting edge is held in closed contact with the face plate when cutting.

12. In a needle sharpener, the COITlb'lIliltion of apair of plier arms, a. face plate q secured to one of said arms and having an opening therein, a needle holder for guiding the needle to said opening, a knife, and a knife-pivot carried by the other of said arms, and ar-anged parallel to the axis and said cutter, the axes of said pivots being parallel to said plate, and resilient n'ieans for pressing the cutting/edge of said mov able cutter against said plate during-the movement of said arm relatively thereto.

14. A cutter device comprising a base and head members, a stationary cutter attached to said base, a movable cutter mounted on said head, said stationary cutter having a portion extending above the cutting edge adapted to act as a guide for the edge of said movable cutter, a pivotal connection between said head and base members, th'e axis of'which is arranged so that as the head member is depressed the latter approaches the plane of the stationary cutter, means for allowing the cutting edge of said movable cutter to move relatively to said head mem her, and means for resiliently holding said second cutter in contact with said stationary cutter. v

'15. -A cutter device comprising, in combination, a pivotally movable base and head members, a stationary cutter carried by said base having a vertical face parallel to the pivot of said base and head members and having its cutting edge above the planepassing through said pivot perpendicular to the vertical face of the cutter, a guide portion extending above said cutting edge, a second cutter mounted on said head, means for 

